通过对多种纯样和商品样的测定论证本方法。
A lot of pure samples and commercial samples were determined in order to verify this method.
用简正振动方式理论分析了混响室内声功率测定问题，求得了严格公式和统计公式，解决了测试中多年未有定论的问题。
Sound power determination in reverberation chambers is discussed in the light of normal mode theory. Rigorous as well as statistical formulas are found, and the aged problem of.
应用推荐